An endoscope system includes a light source unit that emits first and second narrow band light sequentially, a color filter in which first and second filters having different spectral characteristic are disposed, an image pickup device that receives light passing through the first filter in a first pixel and receives light passing through the second filter in a second pixel, and can set an exposing period and a reading period of an electric signal for each pixel, and a control unit that performs control for causing the first narrow band light to be emitted, causing the first pixels to be exposed, and reading an electric signal from the second pixel in a first period, and causing the second narrow band light to be emitted, causing the second pixel to be exposed, and reading an electric signal from the first pixel in a second period.
